Mounting bracket assembly of tow mirror



FIG. 1 is a perspective view of a mounting bracket assembly of tow mirror showing my new design;

FIG. 2 is a front view of the design;

FIG. 3 is a rear view of the design;

FIG. 4 is a left side view of the design;

FIG. 5 is a right side view of the design;

FIG. 6 is a top view of the design; and

FIG. 7 is a bottom view of the design; and,

FIG. 8 is a perspective view showing mounting bracket assembly of tow mirror and a tow mirror shown in dotted line, for illustrative purpose only not forming part of the claimed design. 

The ornamental design for a mounting bracket assembly of tow mirror, as shown and described. 